TM 5-3805-281-24-1
Tests
If laptop computer is not available, use the digital
pressure, temperature analyzer, and transducers, or
gauges.
a. Stop the engine.
b. Loosen vent plug (K) to release the air pressure in
hydraulic oil tank.
c. Install adapter (C) and male quick coupler to test
port on front pump (B) and rear pump (A). Connect
the analyzer and transducers or gauges
4. Raise and lower boom to pressurize hydraulic oil tank.
5. Heat hydraulic oil to the specified temperature. (See
Hydraulic System Warm-Up Procedure in this group.)
Hydraulic Oil--Specification
Temperature ........................................................... 50 5C (120 10F)
NOTE: The pressure setting for propel crossover relief
valves are higher than the system relief valve.
The adjusting plug for system relief valve must be
turned in approximately 1/2 turn to increase the
pressure setting.
9025
25
6. Turn the adjusting plug for system relief valve in 1/2
90
turn to increase the pressure setting.
A--Rear Pump
B--Front Pump
C--TH108328 Adapter (2 used)
K--Vent Plug
Continued on next page
CED,TX08227,3037
1923MAR983/5
6-237
